EP0098821A1 - An arrangement in vehicles with articulated steering - Google Patents
An arrangement in vehicles with articulated steering Download PDFInfo
- Publication number
- EP0098821A1 EP0098821A1 EP83850183A EP83850183A EP0098821A1 EP 0098821 A1 EP0098821 A1 EP 0098821A1 EP 83850183 A EP83850183 A EP 83850183A EP 83850183 A EP83850183 A EP 83850183A EP 0098821 A1 EP0098821 A1 EP 0098821A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- arrangement
- intermediate part
- steering
- vehicle part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/02—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit
Definitions
- tractors are often implemented such as to consist of two vehicle parts, each including a pair of wheels mounted unturnably in relation to the respective vehicle part. Both parts are joined together by one or more linkage systems, the vehicle being steered by mutual relative turning of the parts in the horizontal plane, the result being as so-called waist-steered vehicle.
- linkage systems the vehicle being steered by mutual relative turning of the parts in the horizontal plane, the result being as so-called waist-steered vehicle.
- the present invention has the object, inter alia, of solving the aforementioned problems, and provides an arrangement which is relatively simple and to the purpose from the constructional aspect.
- the tractor illustrated in Figure 1 comorises a forward vehicle part 1 and a rear vehicle part 2.
- the parts are connected to each other by a joint generally denoted by 3, and steering the vehicle is accomplished by two hydraulic cylinders 4.5 mounted between both parts. Steering is controlled from the tractor driving cabin in an unillustrated, conventional manner.
- the joint comprises three main parts, the forward part 6, intermediate part 7 and rear part 8.
- the forward part 6 is rigidly attached to the forward vehicle part 1.
- the upper portion of part 6 is formed with a bearing 9 for accommodating a journalling pin 10 fastened to the intermediate part 7.
- the pin 10 is locked against displacement by a circlip 11 on the portion of the pin projecting out from the bearing 9.
- the lower portion of part 6 is provided with a means comprising a plate 12 fastened to part 6 with screws 13. Attached to the plate and at right-angles to it there is a plate or tongue 14 projecting into an arcuate slot 15 in the lower portion of the intermediate part 7.
- a box-like structure 16 is built up around the slot 15, and encloses two gliding bodies 17,18 coacting with the ton- .gue 14 via a pin 19.
- the members 12-19 thus form a combined connection and retention means.
- the intermediate part 7 may thus pivot about the pin 10 with the gliding bodies 17,18 gliding against the inner walls of the box structure 16. The pivoting movement is thus limited by the ends of the slot 15 or the separate stops (not shown) or the gliding bodies 17,18 coming against the end walls of the structure 16.
- the structure 16 has two fins 20 and 21 carrying a journalling pin 22, constituting a portion of the hin- gin g shaft associated with the steering apparatus.
- a tongue 23 is disposed between both fins 20,21 and is also passed through by the pin 22.
- the tongue is attached to the lower portion of the part 8.
- This part is rigidly attached to the vehicle part 2, similar to the rigid attachment of part 6 to the vehicle part 1.
- the upper portion of part 8 carries a further outstanding plate or tongue 24, accommodating a further pin 25 having the same axis as pin 22 and fastened in two plates 26,27 which are in turn rigidly attached to the intermediate part 7 in the.vicinity of journal ling pin 10.
- the intermediate part 7 is provided with a lug 28,29 constituting attachment for the respective piston rod end 4',5' of the hydraulic cylinders 4,5.
- the part 6 has a pivot pin 30 for mounting a hydraulic cylinder 31, the piston rod 32 thereof being pivotably mounted on a pin 33 at an edge portion of the intermediate part 7.
- This hydraulic cylinder is provided for damping the oscillating movements between part 6 and parts 7 and 8 together.
- All the parts 6,7 and 8 have central cutouts 34,35 and 36, respectively. These cutouts are substantially in mutual register, and are intended for the passage of such as hydraulic lines cardan shafts going between the vehicle parts 1 and 2.
- a plurality of embodiments may naturally be envisaged within the scope of the invention. What is essential is that the parts forming the steering hinge itself, i.e. parts 7 and 8 in the illustrated case, (constructionally constitute a unit), are coacting pair forming a constructional unit in relation to the joint means associated with said first vehicle part.
- the steering means 4,5 may thus be disposed between the appropriate parts without the need of considering angular attitudes caused by pendular movements between the vehicle parts.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
- Vending Machines For Individual Products (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
A vehicle, consisting of two pivotably connected units, has a vehicle part (8) in which is connected via a conventional articulated steering hinge (22, 25) to an intermediate part (7). Steering means such as hydraulic cylinders are connected between said vehicle part and intermediate part (7), which is pivotably connected to a forward part (6) attached to the other vehicle part by a journelling pin mounting (9, 10). The intermediate and forward parts are furthermore kept together by gliding means (12-19) permitting given pendular movement, said movement being in a plane substantially at right-angles to the steering plane.
Description
- In the state of the art, tractors are often implemented such as to consist of two vehicle parts, each including a pair of wheels mounted unturnably in relation to the respective vehicle part. Both parts are joined together by one or more linkage systems, the vehicle being steered by mutual relative turning of the parts in the horizontal plane, the result being as so-called waist-steered vehicle. There are a number of problems in respect of the coupling between the vehicle parts. There is the question of accomplishing turning in the horizontal plane, and this would be comparatively simple to orovide an answer to, but for the fact that the vehicle does not travel on even ground all the time. In uneven terrain one vehicle part tends to assume a leaning attitude in relation to the other, and to prevent severe bending stresses in the steering hinge joint, it is necessary to take measures to provide certain degrees of freedom, i.e. mutual relative turning of the vehicle parts about a substantially horizontal axis which is, of course at right-angles to the steering axis. There are a number of designs on the market, and there are also many patents relating to the solution of problems concerned with this type of steering. The US patents 3 912 300, 4 281 848, 4 290 622 and 4 296 122 are referred to in this connection. These patents relate to designs where a certain amount of free, relative fitting between the vehicle parts is permitted whereby inter alia the mounting of the hydroaulic cylinders providing the turning movements between the vehicle parts must be made pivotable, resulting in operational drawbacks and design problems. The coupling between the two vehicle parts will moreover be comolicated.
- The present invention has the object, inter alia, of solving the aforementioned problems, and provides an arrangement which is relatively simple and to the purpose from the constructional aspect.
- What is characterizing for the present invention will be seen from the following claims.
- The invention will now be described in detail with reference to an embodiment illustrated on the accompanying drawings, where:
- Figure 1, is a view from above, schematically illustrates a tractor having articulated steering.
- Figure 2 is a section along the line II-II in Figure 1.
- Figure 3 is a section along the line III-III in Figure 2.
- Figure 4 is a section along the line IV-IV in Figure 2.
- Figure 5 is a section along the line V-V in Figure 2.
- The tractor illustrated in Figure 1 comorises a
forward vehicle part 1 and arear vehicle part 2. The parts are connected to each other by a joint generally denoted by 3, and steering the vehicle is accomplished by two hydraulic cylinders 4.5 mounted between both parts. Steering is controlled from the tractor driving cabin in an unillustrated, conventional manner. - As will be seen, inter alia from Figure 2, the joint comprises three main parts, the
forward part 6,intermediate part 7 and rear part 8. Theforward part 6 is rigidly attached to theforward vehicle part 1. The upper portion ofpart 6 is formed with abearing 9 for accommodating ajournalling pin 10 fastened to theintermediate part 7. Thepin 10 is locked against displacement by acirclip 11 on the portion of the pin projecting out from thebearing 9. The lower portion ofpart 6 is provided with a means comprising aplate 12 fastened topart 6 withscrews 13. Attached to the plate and at right-angles to it there is a plate ortongue 14 projecting into anarcuate slot 15 in the lower portion of theintermediate part 7. A box-like structure 16 is built up around theslot 15, and encloses twogliding bodies .gue 14 via apin 19. The members 12-19 thus form a combined connection and retention means. With the aid of the illustrated arrangement, theintermediate part 7 may thus pivot about thepin 10 with thegliding bodies box structure 16. The pivoting movement is thus limited by the ends of theslot 15 or the separate stops (not shown) or thegliding bodies structure 16. Thestructure 16 has twofins journalling pin 22, constituting a portion of the hin- ging shaft associated with the steering apparatus. Atongue 23 is disposed between bothfins pin 22. The tongue is attached to the lower portion of the part 8. This part is rigidly attached to thevehicle part 2, similar to the rigid attachment ofpart 6 to thevehicle part 1. The upper portion of part 8 carries a further outstanding plate ortongue 24, accommodating afurther pin 25 having the same axis aspin 22 and fastened in twoplates intermediate part 7 in the.vicinity ofjournal ling pin 10. At either outer side, theintermediate part 7 is provided with alug hydraulic cylinders 4,5. To one side, thepart 6 has apivot pin 30 for mounting ahydraulic cylinder 31, thepiston rod 32 thereof being pivotably mounted on apin 33 at an edge portion of theintermediate part 7. This hydraulic cylinder is provided for damping the oscillating movements betweenpart 6 andparts 7 and 8 together. All theparts central cutouts vehicle parts - The arrangement functions such that in steering the vehicle by operating the
hydraulic cylinders 4 and 5, both vehicle parts will turn about the geometric axis of the hinge formed inter alia by thepins parts pin 10 will turn in thebearing 9. This means that there will be relative movement between the gliding bodies 17.18 and thebox structure 16, although bothparts hydraulic cylinder 31. In practice, however, two symmetrically placed cylinders should be used. It should be noted here that irrespective of the amount of swing occurring within given limits between the vehicle parts, thehydraulic cylinders 4,5 and their piston rod portions 4',5' will never alter their positions in the horizontal plane, sincepart 7 cannot turn in relation to part 8. other than about the hinging axis ofpins cylinders 4,5 will.remain in their given plane of operation. Separating the two vehicle parts is also extremely simple. Thepin 19 is taken from engagement with the projectingtongue 14, via an unillustrated opening in thebox structure 16, after which thecirclip 11 is removed, and then thejoint 33 to thehydraulic cylinder 31. Both vehicle parts may then be moved away from each other. This simple uncoupling and corresponding coupling procedure results in large practical advantages in conjunction with inspection or exchange of parts. - A plurality of embodiments may naturally be envisaged within the scope of the invention. What is essential is that the parts forming the steering hinge itself, i.e.
parts 7 and 8 in the illustrated case, (constructionally constitute a unit), are coacting pair forming a constructional unit in relation to the joint means associated with said first vehicle part. The steering means 4,5 may thus be disposed between the appropriate parts without the need of considering angular attitudes caused by pendular movements between the vehicle parts.
Claims (6)
1. An arrangement in vehicles consisting of two vehicle parts pivotably connected to each other via a joint means, characterized in that the connection between the steering hinge (20-27) itself and one vehicle part (1) is an intermediate part (7) swingably attached relative said vehicle part, and adapted for being swung in a plane substantially at right-angles to the pivoting plane of the steering hinge, the intermediate part being suspended pivotable relative said first vehicle part (1) by a journalling pin mounting (9,10), there being a gliding body (12-18), fixedly arranged relative the first vehicle part, and adapted as a stop for the intermediate part against said first vehicle part.
2. An arrangement as claimed in claim 1, characterized in that the journalling pin (10) of the intermediate part (7) is journal led in a bearing (9) arranged on a plate-like part (6) rigidly mounted on said first vehicle part (1), the opposite portion of the part (6) including a means (12,14) for releasable coacting with gliding bodies (17,18) adapted for gliding in a box-like structure (16) on said intermediate part (7), there being a fin (14) of said means projecting in through an arcuate slot (15) in said intermediate part for allowing oscillating movements.
3. An arrangement as claimed in either of the preceding claims, characterized in that the box-like structure (16) constitutes an attachment for a part of the steering hinge (20-23) itself, while the other part of the steering hinge (24-27) is attached substantially adjacent said journal ling pin (10).
4. An arrangement as claimed in any of the preceding claims, characterized in that said intermediate part is provided with mounting means (28,29) for steering means (4,5,4',5'), e.g. consisting of hydraulic cylinders, attached to said second vehicle part.
5. Arrangement as claimed in any of the preceding claims, charcterized in that said forward plate-like part (6) attached to the forward vehicle part (1) carries an oscillation damping means (30-32), also connected to said intermediate part (7) via a joint (33).
6. Arrangement as claimed in any of the preceding claims, characterized in that the arrangement has its appropriate parts made with central cutouts (34,35,36) to form a through opening for such as hydraulic lines or the like.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8204262 | 1982-07-09 | ||
SE8204262A SE8204262L (en) | 1982-07-09 | 1982-07-09 | DEVICE WITH SA CALLED MIDDLE-DRIVE VEHICLES |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0098821A1 true EP0098821A1 (en) | 1984-01-18 |
Family
ID=20347349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83850183A Withdrawn EP0098821A1 (en) | 1982-07-09 | 1983-06-27 | An arrangement in vehicles with articulated steering |
Country Status (6)
Country | Link |
---|---|
US (1) | US4545454A (en) |
EP (1) | EP0098821A1 (en) |
DK (1) | DK318083A (en) |
FI (1) | FI832292L (en) |
NO (1) | NO155234C (en) |
SE (1) | SE8204262L (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0485732A2 (en) * | 1990-11-14 | 1992-05-20 | Liebherr-Werk Bischofshofen GmbH | Building site vehicle with central pivot steering, especially wheel loader |
DE19629421A1 (en) * | 1996-07-22 | 1998-01-29 | Zettelmeyer Gmbh | Device for upwards and downwards movement of roller blinds, roller door or similar |
CN106240634A (en) * | 2016-08-15 | 2016-12-21 | 陕西铁路工程职业技术学院 | Radial type bidirectional steering vehicle all hydraulic pressure steering-gear |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3817031C2 (en) * | 1988-05-19 | 1994-02-24 | Danfoss As | Steering damper for a kink-controlled vehicle with hydraulic steering |
US20050039973A1 (en) * | 2003-08-21 | 2005-02-24 | Bruce Clark | Yaw, pitch and roll apparatus for a multiple unit vehicle |
EP2682530B1 (en) * | 2011-08-08 | 2015-03-04 | Komatsu Ltd. | Wheel loader |
CN102490807A (en) * | 2011-11-03 | 2012-06-13 | 孙华 | Wheel type travelling chassis |
US9181661B2 (en) * | 2014-01-27 | 2015-11-10 | Caterpillar Paving Products Inc. | Sealing system for hitch assembly |
DE102022109145A1 (en) | 2022-04-13 | 2023-10-19 | Bomag Gmbh | Tandem roller |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1267773A (en) * | 1969-03-12 | 1972-03-22 | Fiskars Ab Oy | Articulation arrangement for a motor vehicle |
US3912300A (en) * | 1974-08-12 | 1975-10-14 | Jr John F Bryan | Articulated joint for articulated vehicles |
FR2281263A1 (en) * | 1974-08-08 | 1976-03-05 | Secmafer Sa | ALL TERRAIN MACHINE |
GB1427194A (en) * | 1973-02-22 | 1976-03-10 | Braud Faucheux Sa Ets | Articulated vehicles |
US4281848A (en) * | 1979-10-11 | 1981-08-04 | J. I. Case Company | Joint for articulated vehicles |
US4290622A (en) * | 1977-08-15 | 1981-09-22 | Magyar Vagon- Es Gepgyar | Hinge unit for articulated vehicles |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3484843A (en) * | 1967-11-28 | 1969-12-16 | William E Martin | Laterally tiltable self-loading motor scraper |
US3521720A (en) * | 1969-02-28 | 1970-07-28 | Isadore R Korotkin | Articulated vehicle with hydraulic drive,steering,and implement manipulating system |
US4111273A (en) * | 1976-10-04 | 1978-09-05 | Dock Truck, Inc. | Terminal tractor |
-
1982
- 1982-07-09 SE SE8204262A patent/SE8204262L/en not_active Application Discontinuation
-
1983
- 1983-06-22 FI FI832292A patent/FI832292L/en not_active Application Discontinuation
- 1983-06-27 EP EP83850183A patent/EP0098821A1/en not_active Withdrawn
- 1983-07-05 US US06/510,758 patent/US4545454A/en not_active Expired - Fee Related
- 1983-07-08 DK DK318083A patent/DK318083A/en not_active Application Discontinuation
- 1983-07-08 NO NO832504A patent/NO155234C/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1267773A (en) * | 1969-03-12 | 1972-03-22 | Fiskars Ab Oy | Articulation arrangement for a motor vehicle |
GB1427194A (en) * | 1973-02-22 | 1976-03-10 | Braud Faucheux Sa Ets | Articulated vehicles |
FR2281263A1 (en) * | 1974-08-08 | 1976-03-05 | Secmafer Sa | ALL TERRAIN MACHINE |
US3912300A (en) * | 1974-08-12 | 1975-10-14 | Jr John F Bryan | Articulated joint for articulated vehicles |
US4290622A (en) * | 1977-08-15 | 1981-09-22 | Magyar Vagon- Es Gepgyar | Hinge unit for articulated vehicles |
US4281848A (en) * | 1979-10-11 | 1981-08-04 | J. I. Case Company | Joint for articulated vehicles |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0485732A2 (en) * | 1990-11-14 | 1992-05-20 | Liebherr-Werk Bischofshofen GmbH | Building site vehicle with central pivot steering, especially wheel loader |
EP0485732A3 (en) * | 1990-11-14 | 1992-08-05 | Liebherr-Werk Bischofshofen Gmbh | Building site vehicle with central pivot steering, especially wheel loader |
DE19629421A1 (en) * | 1996-07-22 | 1998-01-29 | Zettelmeyer Gmbh | Device for upwards and downwards movement of roller blinds, roller door or similar |
CN106240634A (en) * | 2016-08-15 | 2016-12-21 | 陕西铁路工程职业技术学院 | Radial type bidirectional steering vehicle all hydraulic pressure steering-gear |
CN106240634B (en) * | 2016-08-15 | 2018-07-17 | 陕西铁路工程职业技术学院 | Radial type bidirectional steering vehicle all hydraulic pressure steering-gear |
Also Published As
Publication number | Publication date |
---|---|
NO155234B (en) | 1986-11-24 |
NO155234C (en) | 1987-03-04 |
US4545454A (en) | 1985-10-08 |
SE8204262L (en) | 1984-01-10 |
FI832292L (en) | 1984-01-10 |
NO832504L (en) | 1984-01-10 |
FI832292A0 (en) | 1983-06-22 |
DK318083D0 (en) | 1983-07-08 |
DK318083A (en) | 1984-01-10 |
SE8204262D0 (en) | 1982-07-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19840709 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19860402 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BAS, OLOF ALLAN |